Ambient RF energy scavenging: GSM and WLAN power density measurements
conference paper
To assess the feasibility of ambient RF energy scavenging, a survey of expected power density levels distant from GSM-900 and GSM-1800 base stations has been conducted and power density measurements have been performed in a WLAN environment. It appears that for distances ranging from 25m to 100m from a GSM base station, power density levels ranging from 0.1mW/m2 to 3.0mW/m2 may be expected. First measurements in a WLAN environment indicate even lower power density values, making GSM and WLAN unlikely to produce enough ambient RF energy for wirelessly powering miniature sensors. A single GSM telephone however has proven to deliver enough energy for wirelessly powering small applications on moderate distances.
Topics
TNO Identifier
241247
ISBN
9782874870064
Publisher
IEEE
Article nr.
4751554
Source title
38th European Microwave Conference, EuMC 2008, 27-31 October 2008, Amsterdam, The Netherlands
Pages
721-724
Files
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